Screen system

ABSTRACT

A screen assembly is disclosed including a case, a screen assembly, and a bracket assembly that supports the screen assembly within an interior region of the case.

This application is a continuation of U.S. patent application Ser. No.10/984,118, filed Nov. 9, 2004, which is a continuation of U.S. patentapplication Ser. No. 10/385,830, filed Mar. 11, 2003, now U.S. Pat. No.6,816,308, which is a continuation of U.S. patent application Ser. No.09/495,648, filed Feb. 1, 2001, now U.S. Pat. No. 6,532,109, which is adivisional of U.S. patent application Ser. No. 08/859,027, filed May 20,1997, now U.S. Pat. No. 6,137,629, the disclosures of which areexpressly incorporated by reference herein.

BACKGROUND AND SUMMARY OF THE INVENTION

The present invention pertains to projection screen systems, and, inparticular, to systems of the type in which a projection screen may beunwound from around a roller positioned in a housing so as to be loweredto a viewing arrangement.

Projection screen systems in numerous forms are gaining frequentapplication in a variety of venues, including conference rooms in officebuildings and home entertainment systems. Many such systems include anelectrical motor that powers the raising and lowering of the screenrelative to a housing that holds the screen mounting roller. Theprojection screen either winds on the roller or unwinds from the rollerdepending on the direction of rotation of the motor. Projection screensystems of this type frequently are completely installed into a buildingor structure at one time. During this installation process, anelectrician is required to hardwire a power conduit within the structureto the projection screen system. The electrician then electricallyconnects the exposed wire leads of the power cord extending from themotor to this power conduit, and manipulates these electricalconnections into ajunction box mounted within the housing. Oneshortcoming of this one time system installation process is that theinstalled projection screen may be subjected to dust, dirt and otherrisks of damage that are inherent in being located in a constructionzone for potentially long periods of time. However, installing theprojection screen housing to the structure during a first stage ofconstruction and then the projection screen during a subsequent stage ofconstruction may be cost prohibitive. In particular, hiring anelectrician to return to the building to wire the motor to the powerconduit already installed by an electrician during building constructionmay increase installation costs appreciably.

Another shortcoming of many projection screen systems is the difficultyor inconvenience of properly positioning the projection screen within aroom in which it is to be viewed. On occasion, whether it be due to anincorrect measurement during installation or a properly performedinstallation into a room that is subsequently altered beforeconstruction is finished, a person who lowers the screen for use maydiscover the screen to be off-center or improperly positioned within theroom. For projection screen systems that support the screen mountingroller at the housing end caps, longitudinal adjustments of the screenmay require the entire housing be moved to adjust the projection screenpositioning. Other known systems of the type that employ roller mountingbrackets that are attached with screws to the housing do allow theposition of the roller to be adjusted without moving the system housing.However, this adjustment operation, as well as the process of initiallyinstalling the screen mounting roller, may be awkward and difficult foran installer to perform. In particular, this process requires theinstaller to hold the roller mounting brackets in place, typically abovehis or her head, while the brackets are initially attached, or detachedand reattached in situations where a change in screen positioning isdesired.

Another problem with some projection screen systems is that theirconstruction frequently leaves little margin for error in theinstallation process. For example, if the housing is initially installedbackwards with the wrong part of the housing facing into the room inwhich the projection screen is to be used, the housing must be removed,turned around and reinstalled. In addition, on occasion when the fullyassembled system is operated and the screen is lowered, it may bediscovered that the projection screen is too close to the wall to clearany artwork displayed on that wall. Even if that projection screen wasinstalled to roll off the back of the roller within the housing, theroller typically is not capable of being quickly removed and reinstalledto allow the screen to roll off the front edge of the roller. Thisshortcoming is because the closure panel that partially blocks off theunderside opening of the housing may not be readily installable to theback wall of the housing instead of the front wall where the panel wasinitially installed.

BRIEF DESCRIPTION OF THE DRAWINGS

The above mentioned and other advantages and objects of this invention,and the manner of attaining them, will become more apparent and theinvention itself will be better understood by reference to the followingdescription of embodiments of the invention taken in conjunction withthe accompanying drawings, wherein:

FIG. 1 is a fragmentary front view of an assembled projection screensystem of the present invention, wherein the system is partially shownin longitudinal cross-section and wherein the bottom closure panel isnot shown;

FIG. 2 is a fragmentary bottom view of the projection screen system ofFIG. 1, wherein the junction box cover, the electrical circuitryextending from the motor and within the junction box, and the weightedbottom portion of the projection screen have been removed for purposesof illustration;

FIG. 3 is a cross-sectional end view, taken along line 3-3 of FIG. 1, ofthe projection screen system of FIG. 1, wherein the bottom closure panelis shown installed;

FIG. 4 is a cross-sectional end view, taken along line 4-4 of FIG. 1, ofthe projection screen system of FIG. 1, wherein the bottom closure panelis shown installed, wherein the plug and socket connectors of theelectrical circuitry are abstractly shown without their associatedwiring, and wherein the roller and projection screen are not shown incross-section;

FIG. 5 is a cross-sectional end view, taken along line 5-5 of FIG. 1, ofthe projection screen system of FIG. 1, wherein the bottom closure panelis shown installed, and wherein the plug and socket connectors of theelectrical circuitry are abstractly shown without their associatedwiring;

FIGS. 6A and 6B are side and top views of the motor end roller mountingbracket removed from the remainder of the projection screen system ofFIG. 1; and

FIGS. 7 and 8 are similar cross-sectional end views diagrammaticallyshowing a bottom closure panel mounted on different side walls of thehousing and with the projection screen unwinding from different sides ofthe roller.

Corresponding reference characters indicate corresponding partsthroughout the several views. Although the drawings represent anembodiment of the invention, the drawings are not necessarily to scaleand certain features may be exaggerated or omitted in some of thedrawings in order to better illustrate and explain the presentinvention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring now to FIGS. 1-5, there are shown various views of anexemplary embodiment of a projection screen system, generally designated10, of the present invention in a screen storage arrangement. System 10includes a protective housing 12 formed of a top wall or panel 14 havingopposite side edge portions from which downwardly extend side wall 16and side wall 18. The shown orthogonal configuration of side walls 16and 18 with respect to top wall 14 results in housing 12 having aninverted square U-shaped configuration, but other wall arrangements maybe utilized in alternate embodiments. Housing 12 is fabricated from alightweight and strong material such as aluminum. Housing 12 ispreferably formed in one-piece in an extrusion process, but may beformed in alternate fashions, such as by rigidly interconnectingseparate panels or plates. Along its longitudinal length that extendsfrom end 20 to end 21, housing 12 is uniformly configured, and thereforethe shapes of the housing shown in FIGS. 3-5 are representative ratherthan merely coincidentally similar. In the shown embodiment, housing 12is symmetrical about a vertical plane longitudinally extending throughline 164 shown in FIG. 3, and therefore housing 12 may be installed suchthat either side wall 16 or side wall 18 is the front wall (i.e. thehousing wall closer to the center of the room in which projection screensystem 10 is to be viewed).

Housing side wall 16 includes a pair of screw channels 23, and side wall18 includes a pair of screw channels 24. End cap 27 is attached tohousing 12 by four screws 29 that insert into screw channels 23 and 24and closes off the end of the interior volume defined by housing 12. Endcap 28 is similar attached with screws 30 to cap the opposite housingend. End caps 27 and 28 are formed of a high strength material, such assteel. End caps 27, 28 respectively include upper flanges 33, 34 thateach include two apertures as shown in dotted lines in FIG. 2. Theapertured flanges 33, 34 may be attached to a support member of astructure in which projection screen system 10 is to be installed withany of a variety of conventional fasteners, such as threaded rods withlocking nuts and wires as indicated in FIG. 1 at 36 and 37,respectively. Housing 12 may alternatively be directly attached to thesupport member by fasteners that extend through a housing wall, such astop wall 14.

Installed within the interior volume 38 formed by walls 14, 16 and 18 isa junction box, generally designated 40, that furnishes a protectedcompartment for the electrical connections between projection screensystem 10 and a conduit to the installation structure's power supply.Junction box 40 includes vertical side flanges 42 and 43 and a bottomfacing horizontal flange 44 that substantially span the entirehorizontal space between side walls 16 and 18. Self-tapping screws 46and 47 that fit through tabs 49, 50 horizontally extending from boxflanges 42, 43 insert into a screw channel 52 formed into housing topwall 14 to mount junction box 40 to housing 12. Junction box 40 may bemanufactured by orthogonally bending a suitably sized and shaped singlepiece of sheet metal into the shown configuration.

Junction box 40 is positioned directly below an entry hole 55 in housingtop wall 14 through which an electrical conduit (not shown) connected toa structure's power supply can be inserted. Bottom flange 44 includes arectangular opening 57 which allows access to the interior or contentsof box 40. A junction box cover plate 59, shown in dashed lines in FIG.2, is attached to bottom flange 44 with not shown screws that insertthrough four holes 60 in flange 44. A second opening 62 adapted toinstallably receive a power connector is also provided through bottomflange 44.

Mounted to junction box 40 and positioned within the interior of box 40is a power connector abstractly shown in FIG. 1 at 64. Connector 64includes a socket portion 65 from which extend four wire leads 67.Socket portion 65 snap fits into flange opening 62 during installationso as to permit its connection with a complementary power connector in aconvenient fashion and without removing cover plate 59. Socket portion65 includes hollows or sockets within its body that receive projectingplugs of a plug portion of a power connector. In the shown embodiment inwhich four wire leads 67 are employed, socket portion 65 includes fourseparate plug receiving sockets. Wire leads 67, with the use of wirenuts (not shown), are attached to the end of the electrical conduit (notshown) hardwired into the building. A quick disconnect power connectorexternal to junction box 40 is shown at 70 and includes a plug portion72 from which project individual plugs insertable into the sockets ofpower connector 64. Power connector 70 is circuited with a power cord 74connected to screen motor 76. Power connectors 64 and 70 may be readilymated together as described further below to operatively circuit motor76 to the building's electrical power supply. One suitable type of powerconnector is available from AMP Incorporated of Harrisburg, Pa. asUniversal Mate-N-Lok Connectors. Other styles of plug/socket connectors,as well as other types of connectors readily connectable withouthandling of potentially hot wiring, may be substituted for the shownconnectors 64 and 70 within the scope of the invention.

As shown in FIG. 3, downwardly projecting from top wall 14 are twoL-shaped projections, ridges, or interactive members, generallydesignated 80 and 84, that extend the longitudinal length of housing 12and allow for the adjustable attachment of a projection screen assemblyto housing 12. Projection 80 includes a vertically projecting orextending flange 81 that terminates with a horizontally extending lipportion 82 pointing toward the middle of top wall 14. The upper surfaceof lip portion 82 is spaced from the region of top wall 14 which itoverlays to provide an insertion space for bracket mounting as describedbelow. Projection 84 is a mirror image of projection 80 and includesflange 85 and lip portion 86, which points toward lip portion 82.Projections 80 and 84 are integrally formed with top wall 14, but inalternate embodiments may be provided on side walls 16 and 18, such asif a roller is to be mounted to that side wall. Differently shapedprojections, such as slat-shaped flanges that are inclined relative totop wall 14, may be substituted for the L-shaped projections shown. Inaddition, the insertion spaces defined by projections 80 and 84 may beprovided by recesses provided in the housing walls within the scope ofthe invention.

A projection screen assembly that may be readily mounted to housing 12subsequent to the installation of housing 12 in a building is generallydesignated 100 and includes a screen mount including first and secondscreen mount members or brackets 102 and 104 directly attachable tohousing 12. FIGS. 6A and 6B are further described as showing views ofbracket 102, but this shown bracket configuration enables its use aseither bracket 102 or 104, which simplifies manufacture and assembly.Bracket 102 includes an attachment flange 106 from which downwardlyextends support flange 108. Four tapped holes 107 through flange 106receive set screws 116 (See FIG. 1). The end regions 110 and 112 offlange 106 serve as attachment lugs or interactive members. Attachmentlugs 110, 112 have a thickness insertable into the space between topwall 14 and the lip portions 82 and 86 of lipped projections or bracketsupports 80 and 84. Attachment lugs 110 and 112 further are sized suchthat the distance from the outward edge of attachment lug 110 to theoutward edge of attachment lug 112, as measured in a directionperpendicular to a roller when installed to bracket 102, is greater thanthe distance between the tips of lip portions 82 and 86 but less thanthe distance between flanges 81 and 85. Diagonally opposite orcatercorner portions 113 and 114 of attachment lugs 110 and 112 arerounded such that the diagonal length therebetween is less than thedistance between flanges 81 and 85 to allow a rotational bracketinstallation described further below. Support flange 108 includeshorizontally spaced apertures 115, vertically spaced apertures 119, anda central aperture 121. Apertures 119 and 121 are not used in bracket102, but when a bracket shaped as shown in FIGS. 6A and 6B is used asbracket 104, such apertures respectively receive dampener mountingscrews and an idler shaft as described further below. Bracket 104 isconfigured identical to bracket 102 and generally includes an attachmentflange 117 and support flange 118 (See FIG. 1).

Although configured as an outwardly extending and coplanar continuationof bracket flange 106 in the illustrated embodiment, attachment lugs 110and 112 may be differently configured within the scope of the presentinvention. In alternate embodiments, for example, lugs 110 and 112 maybe provided as tabs projecting from support flange 108, or as movablemembers shiftable along attachment flange 106.

Operationally supported by bracket 102 is the electric motor 76connected to power cord or conduit 74. The rotatable output shaft ofmotor 76 is operationally attached to a cylindrical roller 120 in a wellknown fashion. Motor 76 includes a square stud (not shown) that projectsfrom the motor housing and inserts into a square throughbore provided ina finned insert (not shown) made of aluminum molded into dampener 128.The finned insert engages the motor housing stud to prevent relativerotation therebetween. Sound dampener 128 is formed of thermoplasticrubber and includes two laterally extending projections 130 into whichare integrally molded T-nuts 132. A pair of screws 134 extend throughapertures 115 in support flange 108 and engage the internal threads ofT-nuts 132 to mount dampener 128 to bracket flange 108.

Shown wound around roller 120 and unwindable therefrom upon rollerrevolution is a sheet of fabric 122 that serves as a projection screen.Projection screen 122 is shown in FIGS. 1-5 in a retracted positionfully stored within the protective housing 12. As is conventional whenused as a front projection screen, one surface of fabric sheet 122 is ofthe type of material on which images may be projected for viewing, andthe opposite surface is formed of an opaque material. The lower end offabric sheet 122 is looped and secured around a dowel abstractlyindicated at 126. Dowel 126 serves as a suspended weight that causesscreen 122 to descend in a relatively planar configuration as it unwindsfrom roller 120.

At the end of roller 120 opposite the end to which motor 76 is attached,an idler shaft 137 is fixed to roller 120 to be rotatable therewith.Idler shaft 137 extends through a flanged nylon bushing 139 mountedwithin thermoplastic rubber dampener 141, and through a central aperture(corresponding to aperture 121 through support flange 108) in supportflange 118. Slipped over the end of idler shaft 137 is a washer 143, andspring clip 145 attaches around shaft 137 to prevent shaft 137 frombeing axially withdrawn through flange 118. Two screws 147, 149 insertthrough vertically spaced holes through flange 118 to threadedly engageT-nuts (not shown) integrally molded into dampener 141 to mount dampener141 to flange 118.

With particular reference to FIG. 3, a lipped projection 154 projectsinwardly from an interior surface 153 of an outwardly offset lowerregion 152 of housing side wall 16. A second lipped projection 156projects from surface 153 below projection 154. Lipped projections 154and 156 extend the longitudinal length of side wall 16. The outwardlyoffset lower region 158 of housing side wall 18 similar includes lippedprojections 160 and 162, which are mirror images of projections 154 and156.

A bottom closure panel or bottom wall 166 made of aluminum that extendsthe entire longitudinal length of housing 12 and which has a uniformcross-section along its length includes an attachment member 168comprising hook end 170. Closure panel 166 is sized narrower than thespace or opening between side walls 16 and 18 such that when attached toeither side wall 16 or side wall 18, closure panel 166 defines a slotshaped gap 172 with the side wall to which it is not attached. Theprojection screen 122 can be lowered and raised through this gap 172during system operation.

Hook end 170 fits over the upturned lip of lipped projection 154 asshown in FIG. 3 to mount closure panel 166 to side wall 16. The lip oflipped projection 156 provides an enlarged bearing surface against whichthe side surface of attachment member 168 abuts when installed. Anupstanding longitudinal rib 174 stiffens panel 166 to resist panelbowing. Nub 176 that laterally extends from rib 174 and a longitudinallyextending L-shaped rib 178 define a channel 180. Not shown bracketsinsertable into channel 180 at opposite ends of panel 166 includeupstanding leaf spring portions with longitudinally projecting pins.Apertures (not shown) on end caps 27 and 28 receive the pins of the leafspring portions when closure panel 166 is installed to line up the panelhousing and prevent panel sag.

Attachment member 168 may be used to attach to either lipped projection154 or 160 due to the projections complementary structure with member168. Other detachable, interconnecting structures, including housingrecesses or apertures that releasably receive prongs of the closurepanel, may be employed within the scope of the invention.

Referring now to FIGS. 7 and 8, the installation adaptability affordedby the configuration of the housing and closure panel of projectionscreen system 10 is further illustrated. FIG. 7 diagrammatically showsprojection screen 122 unwinding from roller 120 installed within housing12 and passing through gap 172. As closure panel 166 is mounted to sidewall 16, gap 172 is provided between the edge of panel 166 and side wall18. Depending on the requirements of a user of system 10, the viewingsurface of screen 122 may be furnished on either surface 183 or surface184. In screens fabricated with only one surface being a viewingsurface, the direction that surface faces is controlled by the manner inwhich screen 122 is wrapped around roller 120. In the diagrammatic viewof FIG. 8, closure panel 166 is mounted to side wall 18 and consequentlyprojection screen 122 unwinding from roller 120 passes through gap 172formed between the edge of panel 166 and side wall 16. The viewingdirection of screen 122 in FIG. 8 may be from either side.

The structure of projection screen system 10 will be further understoodin view of the following explanation of its installation and operation.A first stage of installation typically involves mounting an assemblyincluding housing 12 to the structure, such as to a beam above the roomin which system 10 is intended to be used. After end caps 27 and 28 andjunction box 40 are preinstalled or fastened to the housing ends and topwall 14, respectively, end caps 27, 28 may be used to mount this screenassembly to the structure. At this stage of installation, the remainderof projection screen system 10 is not installed within housing 12. Forexample, roller 120 with projection screen 122, as well as rollermounting brackets 102 and 104, have yet to be installed, and for thatmatter may be safely held in storage at another location where it isclear of the risk of damage from the construction site environment.After housing 12 is secured to the structure, an electrical conduit isrouted through entry hole 55 and into junction box 40. After anelectrician removes cover plate 59 and electrically interconnects leadwires 67 to the appropriate wires of the electrical conduit, socketportion 65 is snap fit into opening 62 of junction box 40 and coverplate 59 is fastened to flange 44.

Projection screen assembly 100 is subsequently installed to thepreviously installed housing assembly. This installation step, which mayoccur immediately after housing 12 installation but normally is delayeduntil construction of the building is essentially complete, begins withroller mounting brackets 102 and 104 separated from roller 120. Rollerbracket 102 is manipulated by an installer such that attachment flange106 rests substantially flush with the interior surface of housing topwall 14 between lipped projections 80 and 84. Due to the span ofattachment lugs 110 and 112 being larger than the gap between lipportions 82 and 86, to so manipulate bracket 102 an installer mustarrange bracket 102 in a rotational orientation different from theinstalled arrangement shown in FIG. 1, such as about a forty-five degreerotation counter-clockwise from the perspective of a FIG. 2 viewertherefrom. As bracket 102 is then rotated (in a clockwise direction fromthe perspective of a FIG. 2 viewer) while being held at the sameelevation, attachment lugs 110, 112 are rotated into the insertionspaces between top wall 14 and lip portions 82 and 86. The truncatedcorner portions 113 and 114 do not engage the flanges of the lippedprojections and thereby do not prevent this rotational insertion of theattachment lugs 110 and 112. The underside of attachment lugs 110 and112 abut the upper surfaces of lips 82 and 86 to prevent bracket 102from falling out from housing 12.

After bracket 104 is mounted to housing 12 in a similar fashion, namelyby first positioning it in a rotational offset arrangement and rotatingit such that the attachment lugs of its attachment flange insert andengage the attachment lips 82 and 86, the roller 120 and its associatedmounting accessories may be installed between the mounted brackets. Thelongitudinal position of roller 120 may be adjusted along the length ofhousing 12 by sliding brackets 102 and 104 within the channel definedbetween projections 80 and 84. When the proper longitudinal positioningof screen 122 has been achieved, the set screws through the attachmentflanges of each of the roller mounting brackets may be tightened to lockbrackets 102 and 104, and thereby lock screen 122 in its longitudinalposition.

Next, an operator may take the power connector 70 attached to power cord74 and simply plug it into the exposed socket portion 65 of powerconnector 64. It will be appreciated that no electrician is required forthis plug insertion, but rather a person with minimal mechanicalaptitude may complete the circuiting of electrical motor 76 with thepower supply.

The next installation step is to mount bottom closure panel 166. Aninstaller may simply maneuver closure panel 166 such that hook end 170fits over lip projection 154. This positioning may be performed bytilting upward the end of the panel opposite attachment member 168 andthen lowering it after the hooking process is complete. After theclosure panel has been manipulated such that the brackets mounted inchannel 180 engage the apertures of end caps 27 and 28, installation iscomplete. Subsequent operation of motor 76 allows roller 120 to revolve,which in turn causes projection screen 122 to unwind therefrom and passdown through gap 172 to a lowered position where an image can beprojected on its surface for viewing. Motor 76 is reversible to windscreen 122 around roller 120 to raise screen 122.

It will be recognized that if an installer wishes to have the screenunwind from the opposite side of roller 120, the screen assembly may beflipped and the closure panel 166 mounted to lipped projection 160.Housing 12 need not be removed from its installed position to achievethis modification.

While this invention has been shown and described as having multipledesigns, the present invention may be further modified within the spiritand scope of this disclosure. This application is therefore intended tocover any variations, uses, or adaptations of the invention using itsgeneral principles. Further, this application is intended to cover suchdepartures from the present disclosure as come within known or customarypractice in the art to which this invention pertains.

1. A screen system including a case defining an interior region and ascreen-receiving opening, the case including a plurality of walls thatdefine the interior region and the screen-receiving opening and a pairof vertically extending bracket supports, the vertically extendingbracket supports extending from a horizontally oriented wall of theplurality of walls of the case, a screen assembly including a roller, ascreen wrapped on the roller, and a motor positioned adjacent to theroller, the screen extending through the screen-receiving opening whenin a lowered position, and a pair of brackets coupled to the verticallyextending bracket supports of the case and the screen assembly tosupport the screen assembly in the case, a portion of each of the pairof brackets being positioned directly between the pair of verticallyextending bracket supports.
 2. The screen assembly of claim 1, whereinthe vertically extending bracket supports are integral with at least oneof the plurality of walls of the case.
 3. The screen assembly of claim1, wherein the vertically extending bracket supports are cantileveredfrom at least one of the plurality of walls of the case.
 4. The screenassembly of claim 1, wherein the plurality of walls of the case includesa top wall, a bottom wall, and a pair of side walls extending down fromthe top wall, the pair of bracket supports are spaced apart from thepair of side walls.
 5. The screen assembly of claim 4, wherein the pairof side walls and the top wall are integral and the bottom wall isremovably secured to at least one of the side walls.
 6. The screenassembly of claim 1, further including a plug connector electricallycoupled to the motor by a power conduit, wherein the case includes afirst end positioned nearest a first of the brackets and a second endpositioned nearest a second of the brackets, the plug connector ispositioned in the interior region of the case between the first end ofthe case and the first of the brackets, the motor is positioned betweenthe first and second brackets, and the power conduit extends by thefirst of the brackets to provide an electrically conductive path fromthe plug connector to the motor.
 7. A screen system including a casedefining an interior region and a screen-receiving opening, the caseincluding a plurality of walls and a pair of projections positioned inthe interior region, the pair of projections including vertical portionsthat are separated by a separation distance and extending from ahorizontally oriented wall of the plurality of walls of the case, ascreen assembly including a roller, a screen wrapped on the roller, anda motor positioned adjacent to the roller, the screen extending throughthe screen-receiving opening when in a lowered position, and a pair ofbracket assemblies coupled to the projections and the screen assemblyand having a maximum width less than the separation distance.
 8. Thescreen system of claim 7, wherein each bracket assembly includes abracket and a fastener positioned to secure the bracket to the case. 9.The screen system of claim 8, wherein each bracket is positioneddirectly between the projections of the case.
 10. The screen assembly ofclaim 7, wherein the plurality of walls of the case includes a top wall,a bottom wall, and a pair of side walls extending down from the topwall, the pair of projections are spaced apart from the pair of sidewalls.
 11. The screen assembly of claim 10, wherein the top wall and theside walls are integral and the bottom wall is removably secured to atleast one of the side walls.
 12. The screen system of claim 10, whereinthe projections include a vertically extending portion and ahorizontally extending portion supported by the vertically extendingportion.
 13. The screen assembly of claim 7, further including a plugconnector electrically coupled to the motor by a power conduit, whereinthe case includes a first end positioned nearest a first of the bracketassemblies and a second end positioned nearest a second of the bracketassemblies, the plug connector is positioned in the interior region ofthe case between the first end of the case and the first of the bracketassemblies, the motor is positioned between the first and second bracketassemblies, and the power conduit extends by the first of the bracketassemblies to provide an electrically conductive path from the plugconnector to the motor.
 14. A screen system including a case defining aninterior region and a screen-receiving opening, the case including aplurality of walls and a pair of longitudinally extending ridgespositioned in the interior region, the plurality of walls of the caseincluding a top wall, a bottom wall, and a pair of side walls extendingdown from the top wall, the pair of ridges being spaced apart from thepair of side walls, a screen assembly including a roller, a screenwrapped on the roller, and a motor positioned adjacent to the roller,the screen extending through the screen-receiving opening when in alowered position, and a pair of screen bracket assemblies coupled to thescreen assembly and the ridges to support the screen assembly in thecase, each screen bracket assembly including a bracket positioneddirectly between the ridges.
 15. The screen system of claim 14, whereinthe bracket assemblies further include a fastener, the bracket includesa horizontally extending portion and a vertically extending portioncoupled to the horizontally extending portion and supporting the rollerof the screen assembly.
 16. The screen system of claim 15, wherein thehorizontally extending portion is positioned adjacent a top wall of theplurality of walls of the case.
 17. The screen system of claim 14,wherein the ridges are laterally spaced apart and the bracket assembliesare positioned between the laterally spaced ridges.
 18. The screenassembly of claim 17, wherein the ridges include a vertically extendingportion and a horizontally extending portion supported by the verticallyextending portion.
 19. The screen assembly of claim 18, wherein thevertically extending portion of the ridges extend from at least one ofthe plurality of walls of the case, and a portion of the bracketassemblies is positioned between the horizontally extending portion ofthe ridges and said one of the plurality of walls of the case.
 20. Thescreen assembly of claim 19, wherein each of the bracket assembliesfurther include a plurality of threaded fasteners positioned to blockmovement of the bracket relative to the case.
 21. The screen assembly ofclaim 14, further including a plug connector electrically coupled to themotor by a power conduit, wherein the case includes a first endpositioned nearest a first of the bracket assemblies and a second endpositioned nearest a second of the bracket assemblies, the plugconnector is positioned in the interior region of the case between thefirst end of the case and the first of the bracket assemblies, the motoris positioned between the first and second bracket assemblies, and thepower conduit extends by the first of the bracket assemblies to providean electrically conductive path from the plug connector to the motor.22. A screen system including a case defining an interior region and ascreen-receiving opening, the case including a plurality of walls thatdefine the interior region and the screen-receiving opening and a pairof vertically extending bracket supports, the plurality of walls of thecase including a top wall, a bottom wall, and a pair of side wallsextending down from the top wall, the pair of bracket supports arespaced apart from the pair of side walls, a screen assembly including aroller, a screen wrapped on the roller, and a motor positioned adjacentto the roller, the screen extending through the screen-receiving openingwhen in a lowered position, and a pair of brackets coupled to thevertically extending bracket supports of the case and the screenassembly to support the screen assembly in the case, a portion of eachof the pair of brackets being positioned directly between the pair ofvertically extending bracket supports.
 23. The screen assembly of claim22, wherein the vertically extending bracket supports are integral withat least one of the plurality of walls of the case.
 24. The screenassembly of claim 22, wherein the vertically extending bracket supportsare cantilevered from at least one of the plurality of walls of thecase.
 25. The screen assembly of claim 22, wherein the pair of sidewalls and the top wall are integral and the bottom wall is removablysecured to at least one of the side walls.
 26. The screen assembly ofclaim 22, further including a plug connector electrically coupled to themotor by a power conduit, wherein the case includes a first endpositioned nearest a first of the brackets and a second end positionednearest a second of the brackets, the plug connector is positioned inthe interior region of the case between the first end of the case andthe first of the brackets, the motor is positioned between the first andsecond brackets, and the power conduit extends by the first of thebrackets to provide an electrically conductive path from the plugconnectorto the motor.